您的位置: 首页 > 院士专题 > 专题 > 详情页

The bracteatus pineapple genome and domestication of clonally propagated crops

菠萝基因组与克隆繁殖作物的驯化

关键词:
来源:
Nature期刊
全文链接1:
http://agri.ckcest.cn/topic/downloadFile/d40c107a-3bc2-4174-9803-9ca4dea3722b
全文链接2:
https://www.nature.com/articles/s41588-019-0506-8
类型:
学术文献
语种:
英语
原文发布日期:
2019-09-30
摘要:
Domestication of clonally propagated crops such as pineapple from South America was hypothesized to be a ‘one-step operation’. We sequenced the genome of Ananas comosus var. bracteatus CB5 and assembled 513 Mb into 25 chromosomes with 29,412 genes. Comparison of the genomes of CB5, F153 and MD2 elucidated the genomic basis of fiber production, color formation, sugar accumulation and fruit maturation. We also resequenced 89 Ananas genomes. Cultivars ‘Smooth Cayenne’ and ‘Queen’ exhibited ancient and recent admixture, while ‘Singapore Spanish’ supported a one-step operation of domestication. We identified 25 selective sweeps, including a strong sweep containing a pair of tandemly duplicated bromelain inhibitors. Four candidate genes for self-incompatibility were linked in F153, but were not functional in self-compatible CB5. Our findings support the coexistence of sexual recombination and a one-step operation in the domestication of clonally propagated crops. This work guides the exploration of sexual and asexual domestication trajectories in other clonally propagated crops.
相关推荐

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充